| /* |
| * Huawei HiNIC PCI Express Linux driver |
| * Copyright(c) 2017 Huawei Technologies Co., Ltd |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * for more details. |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/pci.h> |
| #include <linux/device.h> |
| #include <linux/errno.h> |
| #include <linux/types.h> |
| #include <linux/etherdevice.h> |
| #include <linux/netdevice.h> |
| #include <linux/slab.h> |
| #include <linux/if_vlan.h> |
| #include <linux/semaphore.h> |
| #include <linux/workqueue.h> |
| #include <net/ip.h> |
| #include <linux/bitops.h> |
| #include <linux/bitmap.h> |
| #include <linux/delay.h> |
| #include <linux/err.h> |
| |
| #include "hinic_hw_qp.h" |
| #include "hinic_hw_dev.h" |
| #include "hinic_port.h" |
| #include "hinic_tx.h" |
| #include "hinic_rx.h" |
| #include "hinic_dev.h" |
| |
| MODULE_AUTHOR("Huawei Technologies CO., Ltd"); |
| MODULE_DESCRIPTION("Huawei Intelligent NIC driver"); |
| MODULE_LICENSE("GPL"); |
| |
| static unsigned int tx_weight = 64; |
| module_param(tx_weight, uint, 0644); |
| MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)"); |
| |
| static unsigned int rx_weight = 64; |
| module_param(rx_weight, uint, 0644); |
| MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)"); |
| |
| #define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822 |
| #define HINIC_DEV_ID_DUAL_PORT_25GE 0x0200 |
| #define HINIC_DEV_ID_DUAL_PORT_100GE 0x0201 |
| |
| #define HINIC_WQ_NAME "hinic_dev" |
| |
| #define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ |
| NETIF_MSG_IFUP | \ |
| NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR) |
| |
| #define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8) |
| |
| #define work_to_rx_mode_work(work) \ |
| container_of(work, struct hinic_rx_mode_work, work) |
| |
| #define rx_mode_work_to_nic_dev(rx_mode_work) \ |
| container_of(rx_mode_work, struct hinic_dev, rx_mode_work) |
| |
| static int change_mac_addr(struct net_device *netdev, const u8 *addr); |
| |
| static void set_link_speed(struct ethtool_link_ksettings *link_ksettings, |
| enum hinic_speed speed) |
| { |
| switch (speed) { |
| case HINIC_SPEED_10MB_LINK: |
| link_ksettings->base.speed = SPEED_10; |
| break; |
| |
| case HINIC_SPEED_100MB_LINK: |
| link_ksettings->base.speed = SPEED_100; |
| break; |
| |
| case HINIC_SPEED_1000MB_LINK: |
| link_ksettings->base.speed = SPEED_1000; |
| break; |
| |
| case HINIC_SPEED_10GB_LINK: |
| link_ksettings->base.speed = SPEED_10000; |
| break; |
| |
| case HINIC_SPEED_25GB_LINK: |
| link_ksettings->base.speed = SPEED_25000; |
| break; |
| |
| case HINIC_SPEED_40GB_LINK: |
| link_ksettings->base.speed = SPEED_40000; |
| break; |
| |
| case HINIC_SPEED_100GB_LINK: |
| link_ksettings->base.speed = SPEED_100000; |
| break; |
| |
| default: |
| link_ksettings->base.speed = SPEED_UNKNOWN; |
| break; |
| } |
| } |
| |
| static int hinic_get_link_ksettings(struct net_device *netdev, |
| struct ethtool_link_ksettings |
| *link_ksettings) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| enum hinic_port_link_state link_state; |
| struct hinic_port_cap port_cap; |
| int err; |
| |
| ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); |
| ethtool_link_ksettings_add_link_mode(link_ksettings, supported, |
| Autoneg); |
| |
| link_ksettings->base.speed = SPEED_UNKNOWN; |
| link_ksettings->base.autoneg = AUTONEG_DISABLE; |
| link_ksettings->base.duplex = DUPLEX_UNKNOWN; |
| |
| err = hinic_port_get_cap(nic_dev, &port_cap); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to get port capabilities\n"); |
| return err; |
| } |
| |
| err = hinic_port_link_state(nic_dev, &link_state); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to get port link state\n"); |
| return err; |
| } |
| |
| if (link_state != HINIC_LINK_STATE_UP) { |
| netif_info(nic_dev, drv, netdev, "No link\n"); |
| return err; |
| } |
| |
| set_link_speed(link_ksettings, port_cap.speed); |
| |
| if (!!(port_cap.autoneg_cap & HINIC_AUTONEG_SUPPORTED)) |
| ethtool_link_ksettings_add_link_mode(link_ksettings, |
| advertising, Autoneg); |
| |
| if (port_cap.autoneg_state == HINIC_AUTONEG_ACTIVE) |
| link_ksettings->base.autoneg = AUTONEG_ENABLE; |
| |
| link_ksettings->base.duplex = (port_cap.duplex == HINIC_DUPLEX_FULL) ? |
| DUPLEX_FULL : DUPLEX_HALF; |
| return 0; |
| } |
| |
| static void hinic_get_drvinfo(struct net_device *netdev, |
| struct ethtool_drvinfo *info) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct hinic_hwdev *hwdev = nic_dev->hwdev; |
| struct hinic_hwif *hwif = hwdev->hwif; |
| |
| strlcpy(info->driver, HINIC_DRV_NAME, sizeof(info->driver)); |
| strlcpy(info->bus_info, pci_name(hwif->pdev), sizeof(info->bus_info)); |
| } |
| |
| static void hinic_get_ringparam(struct net_device *netdev, |
| struct ethtool_ringparam *ring) |
| { |
| ring->rx_max_pending = HINIC_RQ_DEPTH; |
| ring->tx_max_pending = HINIC_SQ_DEPTH; |
| ring->rx_pending = HINIC_RQ_DEPTH; |
| ring->tx_pending = HINIC_SQ_DEPTH; |
| } |
| |
| static void hinic_get_channels(struct net_device *netdev, |
| struct ethtool_channels *channels) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct hinic_hwdev *hwdev = nic_dev->hwdev; |
| |
| channels->max_rx = hwdev->nic_cap.max_qps; |
| channels->max_tx = hwdev->nic_cap.max_qps; |
| channels->max_other = 0; |
| channels->max_combined = 0; |
| channels->rx_count = hinic_hwdev_num_qps(hwdev); |
| channels->tx_count = hinic_hwdev_num_qps(hwdev); |
| channels->other_count = 0; |
| channels->combined_count = 0; |
| } |
| |
| static const struct ethtool_ops hinic_ethtool_ops = { |
| .get_link_ksettings = hinic_get_link_ksettings, |
| .get_drvinfo = hinic_get_drvinfo, |
| .get_link = ethtool_op_get_link, |
| .get_ringparam = hinic_get_ringparam, |
| .get_channels = hinic_get_channels, |
| }; |
| |
| static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq) |
| { |
| struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats; |
| struct hinic_rxq_stats rx_stats; |
| |
| u64_stats_init(&rx_stats.syncp); |
| |
| hinic_rxq_get_stats(rxq, &rx_stats); |
| |
| u64_stats_update_begin(&nic_rx_stats->syncp); |
| nic_rx_stats->bytes += rx_stats.bytes; |
| nic_rx_stats->pkts += rx_stats.pkts; |
| u64_stats_update_end(&nic_rx_stats->syncp); |
| |
| hinic_rxq_clean_stats(rxq); |
| } |
| |
| static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq) |
| { |
| struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats; |
| struct hinic_txq_stats tx_stats; |
| |
| u64_stats_init(&tx_stats.syncp); |
| |
| hinic_txq_get_stats(txq, &tx_stats); |
| |
| u64_stats_update_begin(&nic_tx_stats->syncp); |
| nic_tx_stats->bytes += tx_stats.bytes; |
| nic_tx_stats->pkts += tx_stats.pkts; |
| nic_tx_stats->tx_busy += tx_stats.tx_busy; |
| nic_tx_stats->tx_wake += tx_stats.tx_wake; |
| nic_tx_stats->tx_dropped += tx_stats.tx_dropped; |
| u64_stats_update_end(&nic_tx_stats->syncp); |
| |
| hinic_txq_clean_stats(txq); |
| } |
| |
| static void update_nic_stats(struct hinic_dev *nic_dev) |
| { |
| int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); |
| |
| for (i = 0; i < num_qps; i++) |
| update_rx_stats(nic_dev, &nic_dev->rxqs[i]); |
| |
| for (i = 0; i < num_qps; i++) |
| update_tx_stats(nic_dev, &nic_dev->txqs[i]); |
| } |
| |
| /** |
| * create_txqs - Create the Logical Tx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int create_txqs(struct hinic_dev *nic_dev) |
| { |
| int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| size_t txq_size; |
| |
| if (nic_dev->txqs) |
| return -EINVAL; |
| |
| txq_size = num_txqs * sizeof(*nic_dev->txqs); |
| nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL); |
| if (!nic_dev->txqs) |
| return -ENOMEM; |
| |
| for (i = 0; i < num_txqs; i++) { |
| struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i); |
| |
| err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to init Txq\n"); |
| goto err_init_txq; |
| } |
| } |
| |
| return 0; |
| |
| err_init_txq: |
| for (j = 0; j < i; j++) |
| hinic_clean_txq(&nic_dev->txqs[j]); |
| |
| devm_kfree(&netdev->dev, nic_dev->txqs); |
| return err; |
| } |
| |
| /** |
| * free_txqs - Free the Logical Tx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| **/ |
| static void free_txqs(struct hinic_dev *nic_dev) |
| { |
| int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| |
| if (!nic_dev->txqs) |
| return; |
| |
| for (i = 0; i < num_txqs; i++) |
| hinic_clean_txq(&nic_dev->txqs[i]); |
| |
| devm_kfree(&netdev->dev, nic_dev->txqs); |
| nic_dev->txqs = NULL; |
| } |
| |
| /** |
| * create_txqs - Create the Logical Rx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int create_rxqs(struct hinic_dev *nic_dev) |
| { |
| int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| size_t rxq_size; |
| |
| if (nic_dev->rxqs) |
| return -EINVAL; |
| |
| rxq_size = num_rxqs * sizeof(*nic_dev->rxqs); |
| nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL); |
| if (!nic_dev->rxqs) |
| return -ENOMEM; |
| |
| for (i = 0; i < num_rxqs; i++) { |
| struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i); |
| |
| err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to init rxq\n"); |
| goto err_init_rxq; |
| } |
| } |
| |
| return 0; |
| |
| err_init_rxq: |
| for (j = 0; j < i; j++) |
| hinic_clean_rxq(&nic_dev->rxqs[j]); |
| |
| devm_kfree(&netdev->dev, nic_dev->rxqs); |
| return err; |
| } |
| |
| /** |
| * free_txqs - Free the Logical Rx Queues of specific NIC device |
| * @nic_dev: the specific NIC device |
| **/ |
| static void free_rxqs(struct hinic_dev *nic_dev) |
| { |
| int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev); |
| struct net_device *netdev = nic_dev->netdev; |
| |
| if (!nic_dev->rxqs) |
| return; |
| |
| for (i = 0; i < num_rxqs; i++) |
| hinic_clean_rxq(&nic_dev->rxqs[i]); |
| |
| devm_kfree(&netdev->dev, nic_dev->rxqs); |
| nic_dev->rxqs = NULL; |
| } |
| |
| static int hinic_open(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| enum hinic_port_link_state link_state; |
| int err, ret, num_qps; |
| |
| if (!(nic_dev->flags & HINIC_INTF_UP)) { |
| err = hinic_hwdev_ifup(nic_dev->hwdev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed - HW interface up\n"); |
| return err; |
| } |
| } |
| |
| err = create_txqs(nic_dev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to create Tx queues\n"); |
| goto err_create_txqs; |
| } |
| |
| err = create_rxqs(nic_dev); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to create Rx queues\n"); |
| goto err_create_rxqs; |
| } |
| |
| num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); |
| netif_set_real_num_tx_queues(netdev, num_qps); |
| netif_set_real_num_rx_queues(netdev, num_qps); |
| |
| err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to set port state\n"); |
| goto err_port_state; |
| } |
| |
| err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to set func port state\n"); |
| goto err_func_port_state; |
| } |
| |
| /* Wait up to 3 sec between port enable to link state */ |
| msleep(3000); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| err = hinic_port_link_state(nic_dev, &link_state); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to get link state\n"); |
| goto err_port_link; |
| } |
| |
| if (link_state == HINIC_LINK_STATE_UP) |
| nic_dev->flags |= HINIC_LINK_UP; |
| |
| nic_dev->flags |= HINIC_INTF_UP; |
| |
| if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == |
| (HINIC_LINK_UP | HINIC_INTF_UP)) { |
| netif_info(nic_dev, drv, netdev, "link + intf UP\n"); |
| netif_carrier_on(netdev); |
| netif_tx_wake_all_queues(netdev); |
| } |
| |
| up(&nic_dev->mgmt_lock); |
| |
| netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n"); |
| return 0; |
| |
| err_port_link: |
| up(&nic_dev->mgmt_lock); |
| ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); |
| if (ret) |
| netif_warn(nic_dev, drv, netdev, |
| "Failed to revert func port state\n"); |
| |
| err_func_port_state: |
| ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); |
| if (ret) |
| netif_warn(nic_dev, drv, netdev, |
| "Failed to revert port state\n"); |
| |
| err_port_state: |
| free_rxqs(nic_dev); |
| |
| err_create_rxqs: |
| free_txqs(nic_dev); |
| |
| err_create_txqs: |
| if (!(nic_dev->flags & HINIC_INTF_UP)) |
| hinic_hwdev_ifdown(nic_dev->hwdev); |
| return err; |
| } |
| |
| static int hinic_close(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| unsigned int flags; |
| int err; |
| |
| down(&nic_dev->mgmt_lock); |
| |
| flags = nic_dev->flags; |
| nic_dev->flags &= ~HINIC_INTF_UP; |
| |
| netif_carrier_off(netdev); |
| netif_tx_disable(netdev); |
| |
| update_nic_stats(nic_dev); |
| |
| up(&nic_dev->mgmt_lock); |
| |
| err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to set func port state\n"); |
| nic_dev->flags |= (flags & HINIC_INTF_UP); |
| return err; |
| } |
| |
| err = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to set port state\n"); |
| nic_dev->flags |= (flags & HINIC_INTF_UP); |
| return err; |
| } |
| |
| free_rxqs(nic_dev); |
| free_txqs(nic_dev); |
| |
| if (flags & HINIC_INTF_UP) |
| hinic_hwdev_ifdown(nic_dev->hwdev); |
| |
| netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n"); |
| return 0; |
| } |
| |
| static int hinic_change_mtu(struct net_device *netdev, int new_mtu) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| int err; |
| |
| netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu); |
| |
| err = hinic_port_set_mtu(nic_dev, new_mtu); |
| if (err) |
| netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n"); |
| else |
| netdev->mtu = new_mtu; |
| |
| return err; |
| } |
| |
| /** |
| * change_mac_addr - change the main mac address of network device |
| * @netdev: network device |
| * @addr: mac address to set |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int change_mac_addr(struct net_device *netdev, const u8 *addr) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| u16 vid = 0; |
| int err; |
| |
| if (!is_valid_ether_addr(addr)) |
| return -EADDRNOTAVAIL; |
| |
| netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n", |
| addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| do { |
| err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to delete mac\n"); |
| break; |
| } |
| |
| err = hinic_port_add_mac(nic_dev, addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); |
| break; |
| } |
| |
| vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); |
| } while (vid != VLAN_N_VID); |
| |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static int hinic_set_mac_addr(struct net_device *netdev, void *addr) |
| { |
| unsigned char new_mac[ETH_ALEN]; |
| struct sockaddr *saddr = addr; |
| int err; |
| |
| memcpy(new_mac, saddr->sa_data, ETH_ALEN); |
| |
| err = change_mac_addr(netdev, new_mac); |
| if (!err) |
| memcpy(netdev->dev_addr, new_mac, ETH_ALEN); |
| |
| return err; |
| } |
| |
| /** |
| * add_mac_addr - add mac address to network device |
| * @netdev: network device |
| * @addr: mac address to add |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int add_mac_addr(struct net_device *netdev, const u8 *addr) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| u16 vid = 0; |
| int err; |
| |
| if (!is_valid_ether_addr(addr)) |
| return -EADDRNOTAVAIL; |
| |
| netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n", |
| addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| do { |
| err = hinic_port_add_mac(nic_dev, addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to add mac\n"); |
| break; |
| } |
| |
| vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); |
| } while (vid != VLAN_N_VID); |
| |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| /** |
| * remove_mac_addr - remove mac address from network device |
| * @netdev: network device |
| * @addr: mac address to remove |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int remove_mac_addr(struct net_device *netdev, const u8 *addr) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| u16 vid = 0; |
| int err; |
| |
| if (!is_valid_ether_addr(addr)) |
| return -EADDRNOTAVAIL; |
| |
| netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n", |
| addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| do { |
| err = hinic_port_del_mac(nic_dev, addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, |
| "Failed to delete mac\n"); |
| break; |
| } |
| |
| vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1); |
| } while (vid != VLAN_N_VID); |
| |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static int hinic_vlan_rx_add_vid(struct net_device *netdev, |
| __always_unused __be16 proto, u16 vid) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| int ret, err; |
| |
| netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| err = hinic_port_add_vlan(nic_dev, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to add vlan\n"); |
| goto err_vlan_add; |
| } |
| |
| err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to set mac\n"); |
| goto err_add_mac; |
| } |
| |
| bitmap_set(nic_dev->vlan_bitmap, vid, 1); |
| |
| up(&nic_dev->mgmt_lock); |
| return 0; |
| |
| err_add_mac: |
| ret = hinic_port_del_vlan(nic_dev, vid); |
| if (ret) |
| netif_err(nic_dev, drv, netdev, |
| "Failed to revert by removing vlan\n"); |
| |
| err_vlan_add: |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static int hinic_vlan_rx_kill_vid(struct net_device *netdev, |
| __always_unused __be16 proto, u16 vid) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| int err; |
| |
| netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid); |
| |
| down(&nic_dev->mgmt_lock); |
| |
| err = hinic_port_del_vlan(nic_dev, vid); |
| if (err) { |
| netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n"); |
| goto err_del_vlan; |
| } |
| |
| bitmap_clear(nic_dev->vlan_bitmap, vid, 1); |
| |
| up(&nic_dev->mgmt_lock); |
| return 0; |
| |
| err_del_vlan: |
| up(&nic_dev->mgmt_lock); |
| return err; |
| } |
| |
| static void set_rx_mode(struct work_struct *work) |
| { |
| struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work); |
| struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work); |
| |
| netif_info(nic_dev, drv, nic_dev->netdev, "set rx mode work\n"); |
| |
| hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode); |
| |
| __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); |
| __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr); |
| } |
| |
| static void hinic_set_rx_mode(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct hinic_rx_mode_work *rx_mode_work; |
| u32 rx_mode; |
| |
| rx_mode_work = &nic_dev->rx_mode_work; |
| |
| rx_mode = HINIC_RX_MODE_UC | |
| HINIC_RX_MODE_MC | |
| HINIC_RX_MODE_BC; |
| |
| if (netdev->flags & IFF_PROMISC) |
| rx_mode |= HINIC_RX_MODE_PROMISC; |
| else if (netdev->flags & IFF_ALLMULTI) |
| rx_mode |= HINIC_RX_MODE_MC_ALL; |
| |
| rx_mode_work->rx_mode = rx_mode; |
| |
| queue_work(nic_dev->workq, &rx_mode_work->work); |
| } |
| |
| static void hinic_tx_timeout(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| |
| netif_err(nic_dev, drv, netdev, "Tx timeout\n"); |
| } |
| |
| static void hinic_get_stats64(struct net_device *netdev, |
| struct rtnl_link_stats64 *stats) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct hinic_rxq_stats *nic_rx_stats; |
| struct hinic_txq_stats *nic_tx_stats; |
| |
| nic_rx_stats = &nic_dev->rx_stats; |
| nic_tx_stats = &nic_dev->tx_stats; |
| |
| down(&nic_dev->mgmt_lock); |
| |
| if (nic_dev->flags & HINIC_INTF_UP) |
| update_nic_stats(nic_dev); |
| |
| up(&nic_dev->mgmt_lock); |
| |
| stats->rx_bytes = nic_rx_stats->bytes; |
| stats->rx_packets = nic_rx_stats->pkts; |
| |
| stats->tx_bytes = nic_tx_stats->bytes; |
| stats->tx_packets = nic_tx_stats->pkts; |
| stats->tx_errors = nic_tx_stats->tx_dropped; |
| } |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| static void hinic_netpoll(struct net_device *netdev) |
| { |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| int i, num_qps; |
| |
| num_qps = hinic_hwdev_num_qps(nic_dev->hwdev); |
| for (i = 0; i < num_qps; i++) { |
| struct hinic_txq *txq = &nic_dev->txqs[i]; |
| struct hinic_rxq *rxq = &nic_dev->rxqs[i]; |
| |
| napi_schedule(&txq->napi); |
| napi_schedule(&rxq->napi); |
| } |
| } |
| #endif |
| |
| static const struct net_device_ops hinic_netdev_ops = { |
| .ndo_open = hinic_open, |
| .ndo_stop = hinic_close, |
| .ndo_change_mtu = hinic_change_mtu, |
| .ndo_set_mac_address = hinic_set_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid, |
| .ndo_set_rx_mode = hinic_set_rx_mode, |
| .ndo_start_xmit = hinic_xmit_frame, |
| .ndo_tx_timeout = hinic_tx_timeout, |
| .ndo_get_stats64 = hinic_get_stats64, |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = hinic_netpoll, |
| #endif |
| }; |
| |
| static void netdev_features_init(struct net_device *netdev) |
| { |
| netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA; |
| |
| netdev->vlan_features = netdev->hw_features; |
| |
| netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER; |
| } |
| |
| /** |
| * link_status_event_handler - link event handler |
| * @handle: nic device for the handler |
| * @buf_in: input buffer |
| * @in_size: input size |
| * @buf_in: output buffer |
| * @out_size: returned output size |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static void link_status_event_handler(void *handle, void *buf_in, u16 in_size, |
| void *buf_out, u16 *out_size) |
| { |
| struct hinic_port_link_status *link_status, *ret_link_status; |
| struct hinic_dev *nic_dev = handle; |
| |
| link_status = buf_in; |
| |
| if (link_status->link == HINIC_LINK_STATE_UP) { |
| down(&nic_dev->mgmt_lock); |
| |
| nic_dev->flags |= HINIC_LINK_UP; |
| |
| if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) == |
| (HINIC_LINK_UP | HINIC_INTF_UP)) { |
| netif_carrier_on(nic_dev->netdev); |
| netif_tx_wake_all_queues(nic_dev->netdev); |
| } |
| |
| up(&nic_dev->mgmt_lock); |
| |
| netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n"); |
| } else { |
| down(&nic_dev->mgmt_lock); |
| |
| nic_dev->flags &= ~HINIC_LINK_UP; |
| |
| netif_carrier_off(nic_dev->netdev); |
| netif_tx_disable(nic_dev->netdev); |
| |
| up(&nic_dev->mgmt_lock); |
| |
| netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n"); |
| } |
| |
| ret_link_status = buf_out; |
| ret_link_status->status = 0; |
| |
| *out_size = sizeof(*ret_link_status); |
| } |
| |
| /** |
| * nic_dev_init - Initialize the NIC device |
| * @pdev: the NIC pci device |
| * |
| * Return 0 - Success, negative - Failure |
| **/ |
| static int nic_dev_init(struct pci_dev *pdev) |
| { |
| struct hinic_rx_mode_work *rx_mode_work; |
| struct hinic_txq_stats *tx_stats; |
| struct hinic_rxq_stats *rx_stats; |
| struct hinic_dev *nic_dev; |
| struct net_device *netdev; |
| struct hinic_hwdev *hwdev; |
| int err, num_qps; |
| |
| hwdev = hinic_init_hwdev(pdev); |
| if (IS_ERR(hwdev)) { |
| dev_err(&pdev->dev, "Failed to initialize HW device\n"); |
| return PTR_ERR(hwdev); |
| } |
| |
| num_qps = hinic_hwdev_num_qps(hwdev); |
| if (num_qps <= 0) { |
| dev_err(&pdev->dev, "Invalid number of QPS\n"); |
| err = -EINVAL; |
| goto err_num_qps; |
| } |
| |
| netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps); |
| if (!netdev) { |
| dev_err(&pdev->dev, "Failed to allocate Ethernet device\n"); |
| err = -ENOMEM; |
| goto err_alloc_etherdev; |
| } |
| |
| netdev->netdev_ops = &hinic_netdev_ops; |
| netdev->ethtool_ops = &hinic_ethtool_ops; |
| netdev->max_mtu = ETH_MAX_MTU; |
| |
| nic_dev = netdev_priv(netdev); |
| nic_dev->netdev = netdev; |
| nic_dev->hwdev = hwdev; |
| nic_dev->msg_enable = MSG_ENABLE_DEFAULT; |
| nic_dev->flags = 0; |
| nic_dev->txqs = NULL; |
| nic_dev->rxqs = NULL; |
| nic_dev->tx_weight = tx_weight; |
| nic_dev->rx_weight = rx_weight; |
| |
| sema_init(&nic_dev->mgmt_lock, 1); |
| |
| tx_stats = &nic_dev->tx_stats; |
| rx_stats = &nic_dev->rx_stats; |
| |
| u64_stats_init(&tx_stats->syncp); |
| u64_stats_init(&rx_stats->syncp); |
| |
| nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev, |
| VLAN_BITMAP_SIZE(nic_dev), |
| GFP_KERNEL); |
| if (!nic_dev->vlan_bitmap) { |
| err = -ENOMEM; |
| goto err_vlan_bitmap; |
| } |
| |
| nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME); |
| if (!nic_dev->workq) { |
| err = -ENOMEM; |
| goto err_workq; |
| } |
| |
| pci_set_drvdata(pdev, netdev); |
| |
| err = hinic_port_get_mac(nic_dev, netdev->dev_addr); |
| if (err) |
| dev_warn(&pdev->dev, "Failed to get mac address\n"); |
| |
| err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to add mac\n"); |
| goto err_add_mac; |
| } |
| |
| err = hinic_port_set_mtu(nic_dev, netdev->mtu); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to set mtu\n"); |
| goto err_set_mtu; |
| } |
| |
| rx_mode_work = &nic_dev->rx_mode_work; |
| INIT_WORK(&rx_mode_work->work, set_rx_mode); |
| |
| netdev_features_init(netdev); |
| |
| netif_carrier_off(netdev); |
| |
| hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS, |
| nic_dev, link_status_event_handler); |
| |
| SET_NETDEV_DEV(netdev, &pdev->dev); |
| err = register_netdev(netdev); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to register netdev\n"); |
| goto err_reg_netdev; |
| } |
| |
| return 0; |
| |
| err_reg_netdev: |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_LINK_STATUS); |
| cancel_work_sync(&rx_mode_work->work); |
| |
| err_set_mtu: |
| err_add_mac: |
| pci_set_drvdata(pdev, NULL); |
| destroy_workqueue(nic_dev->workq); |
| |
| err_workq: |
| err_vlan_bitmap: |
| free_netdev(netdev); |
| |
| err_alloc_etherdev: |
| err_num_qps: |
| hinic_free_hwdev(hwdev); |
| return err; |
| } |
| |
| static int hinic_probe(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| int err = pci_enable_device(pdev); |
| |
| if (err) { |
| dev_err(&pdev->dev, "Failed to enable PCI device\n"); |
| return err; |
| } |
| |
| err = pci_request_regions(pdev, HINIC_DRV_NAME); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to request PCI regions\n"); |
| goto err_pci_regions; |
| } |
| |
| pci_set_master(pdev); |
| |
| err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
| if (err) { |
| dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n"); |
| err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to set DMA mask\n"); |
| goto err_dma_mask; |
| } |
| } |
| |
| err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
| if (err) { |
| dev_warn(&pdev->dev, |
| "Couldn't set 64-bit consistent DMA mask\n"); |
| err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
| if (err) { |
| dev_err(&pdev->dev, |
| "Failed to set consistent DMA mask\n"); |
| goto err_dma_consistent_mask; |
| } |
| } |
| |
| err = nic_dev_init(pdev); |
| if (err) { |
| dev_err(&pdev->dev, "Failed to initialize NIC device\n"); |
| goto err_nic_dev_init; |
| } |
| |
| dev_info(&pdev->dev, "HiNIC driver - probed\n"); |
| return 0; |
| |
| err_nic_dev_init: |
| err_dma_consistent_mask: |
| err_dma_mask: |
| pci_release_regions(pdev); |
| |
| err_pci_regions: |
| pci_disable_device(pdev); |
| return err; |
| } |
| |
| static void hinic_remove(struct pci_dev *pdev) |
| { |
| struct net_device *netdev = pci_get_drvdata(pdev); |
| struct hinic_dev *nic_dev = netdev_priv(netdev); |
| struct hinic_rx_mode_work *rx_mode_work; |
| |
| unregister_netdev(netdev); |
| |
| hinic_hwdev_cb_unregister(nic_dev->hwdev, |
| HINIC_MGMT_MSG_CMD_LINK_STATUS); |
| |
| rx_mode_work = &nic_dev->rx_mode_work; |
| cancel_work_sync(&rx_mode_work->work); |
| |
| pci_set_drvdata(pdev, NULL); |
| |
| destroy_workqueue(nic_dev->workq); |
| |
| hinic_free_hwdev(nic_dev->hwdev); |
| |
| free_netdev(netdev); |
| |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| |
| dev_info(&pdev->dev, "HiNIC driver - removed\n"); |
| } |
| |
| static const struct pci_device_id hinic_pci_table[] = { |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0}, |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_25GE), 0}, |
| { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0}, |
| { 0, 0} |
| }; |
| MODULE_DEVICE_TABLE(pci, hinic_pci_table); |
| |
| static struct pci_driver hinic_driver = { |
| .name = HINIC_DRV_NAME, |
| .id_table = hinic_pci_table, |
| .probe = hinic_probe, |
| .remove = hinic_remove, |
| }; |
| |
| module_pci_driver(hinic_driver); |